题目/Title：OTACAD：An Opamp Synthesis Tool Based on Simulation and Lookup Table

作者/Author：
                        Changyi Yang,Xiaoxiao Zhao,Fule Li,Zhihua Wang

会议/Conference：ICSICT 2010

地点/Location：Shanghai

年份/Issue Date：2010.1-4 Nov.

页码/pages：pp. 803 - 805

摘要/Abstract：
A systematic methodology for opamp synthesis is presented. Based on this methodology, an automatic computer-aided design (CAD) tool called OTACAD is developed. OTACAD directly uses HSPICE as the si-mulator and a lookup table to model MOSFET in saturation region without complex equations. So it can design opamps in deep-sub-micron technologies and is suitable for various CMOS processes. Then, A sample opamp is designed by this tool in a 0.13-um CMOS process and used in the first stage of a 12-bit 200MS/s pipeline ADC. This ADC achieves a SNDR of 74.9dB, a SFDR of 93.0dB for a 84.2MHz input signal. In addition, several different CMOS processes have been tested to verify its adaptability.